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Compat™ 45

EZ-Spray® Silicone 22 vs. Compat™ 45EZ-Spray® Silicone 22

Non-Inhibiting Urethane Rubber

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Key Differences

Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Rubber
Mixed Viscosity11,000 cps2,600 cps
Pot Life5 minutes25 minutes
Cure Time45 minutes16 hours
Shore A Hardness2245
ColorTranslucent GreenOff White
Tensile Strength490 psi629 psi
Elongation @ Break450 %772 %
100% Modulus49 psi137 psi
Disclaimer
Although we do our best to ensure the accuracy of this Compare Tool, Smooth-On offers no warranty either expressed or implied as to the reliability of the information contained herein. Smooth-On assumes no liability for loss or damage associated with use of the Compare Tool. If this is a critical project, we encourage you to review all of the technical data below and contact our Technical Service department with any questions or concerns.

All Technical Data

EZ-Spray® Silicone 22Compat™ 45
Product Type
  • Silicone Rubber - Platinum Cure
  • Urethane Rubber
Mixed Viscosity11,000 cps2,600 cps
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight85A:100B
Pot Life5 minutes25 minutes
Cure Time45 minutes16 hours
Shore A Hardness2245
Specific Gravity1.08 g/cc1.12 g/cc
Specific Volume25.6 cu. in./lb.24.7 cu. in./lb.
ColorTranslucent GreenOff White
Die B Tear Strength102 pli
Die C Tear Strength101 pli
Tensile Strength490 psi629 psi
Elongation @ Break450 %772 %
100% Modulus49 psi137 psi
Shrinkage<.001 in. / in.<0.001 in. / in.
Useful Temperature (min)-65 °F
Useful Temperature (max)500 °F

Product Description

EZ-Spray® Silicone 22

EZ~Spray® Silicone 22 are sprayable silicones which cure quickly to soft rubbers with high elongation and tear strength. Liquid silicone is sprayed through the EZ~Spray® Junior Cartridge System which is an economical alternative to expensive spray equipment. After a suitable thickness is attained, EZ~Spray® Silicone 22 cures in about 45 minutes. EZ~Spray® Silicone cures with negligible shrinkage to strong, durable silicone rubbers good for production casting of polyester, epoxy or urethane resins, gypsum, concrete and other materials.

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Compat™ 45

Compat™ 45 urethane is a unique urethane rubber which will not inhibit the cure of most Smooth-On platinum or tin cure silicone rubbers. It features a low viscosity for easy mixing and pouring and cures with minimal bubble entrapment. Mix ratio is 1A:1B by volume (85A:100B by weight), pot life is 25 minutes and the rubber cures with an ultimate Shore hardness of Shore 45A. Cured rubber is dimensionally stable (low shrinkage), offers good wear resistance and excellent library life. Compat™ 45 can be used for a variety of applications including making molds to cast silicone prop body parts, animatronic skins and medical trainers, as well as for making rubber masters which can be molded using platinum or tin silicone without inhibition concerns.

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Silicone Rubber - Tin Cure ›

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